Type-writing machine.



A. J. BRIGGS., TYPE WRITING MACHINE. APPLICATION FILED Aue.2a. I9I6.

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WINEIITUII 2Q. fig-fw@ I5 TTIJFINEY Patented Eaept. 1i, EMR

WITNEEIEESJ .LRQTHUR d. BRIGGS, 0F SYEACSE, NEW YORK, ASSIGNOR T0 REMINGTON TYPE- WRITER CGMPANY, 0F LION, NEW YORK, A COBJPORTIONG'F NEW 'Y TYPE-WRITNG MELCHNE.

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, Specicationof Lett/ans Patent. Pafgigmitqji Stg-jp@ 11931 "Xo Application led August 28, 1916. SieriaI No. 117,260.

To all whom t may concern:

Be it known that i, ARTHUR J. Brides, citizen of the United States, and resident of Syracuse, in the county oi? Onondaga and State of New York, have invented certain new and useful Improvements in Type-WritingMachines, oi' which the following is a specification.

My invention relates to typewriting nia- 'of constructifro and combinations and arrangements oi parts, all oi. which will be fully set forth herein and particularly pointed out in the claims.

ln the accompanying drawings,

Figure 1 is a rear elevation, partly in section, of so much of the carriage and stationary framework of a typewriting machine as is necessary to illustrate the invention.

Fig. 2 is a left-hand end elevation of the upper rear part of the typewriting machine.

Fig. 3 is a fragmentary plan view of the adjustable margin stop and its coperating parts, some parts being broken away.

Fig. et is a perspective view of the adjustable stop.

The main frame of the machine can be of any suitable construction as far as the present invention is concerned, top plates 1 and carriagerails 2 and 3 being illustrated in the drawing. The rail 2, in the form here shown, consists of a bar or casting lying across the back part of the typewriting niachine and having a ball bearing groove its forward edge as shown in Fig. 2. The rail 3 consists of a plate of sheet metal suit- "ably securedito the rear edge of the casting 2 by screws threaded into holes 4, said plate at its upper part being bentrst forward at an inclination oi 45 and thence backward to form a V--groove facing the rear. The carriage comprises a rail part 5 consisting of a bar of sheet metal having its middle portion horizontal as-shown in Fig. 2 and .bent down along its forward part at an inclination of 45 andthence rearward to forni a grooved rail 6 facing the groove in its rear part and thence forward forming a rail 7 facing the rail 3. Anti-friction balls' 8 complete the ball bearing support of the carriage. Said carriage can be constructed in any suitable way. As here shown it has brackets 410 at the ends thereof .and in which is journaled the axle of a platen 1l having finger wheels 12 and a line spacingnwheel 13. Cooperating with said wheel 12 is the dog 14: of a line space mechanism, said dog being pivoted at 15 on an arm 16 at the rear end oit' a rock shaft 17 journaled in one of the brackets 10, and said shaft at its forward end carrying a line space handle 18. The degree of movement of the line space mechanism is regulated by setting a handle 20, the regulation being eilected by means not necessary here to be shown or described.

F ig. 2 shows parts 21 of a carriage release mechanism also not necessary to be further described. A spring drum 22 and cord 23 are shown for propelling the carriage toward the left.

My adjustable margin stop piece, as shown inthe present instance, is mounted on top of the rail casting 2, the stop itself, Figs. 1 and 4, consisting of a lug 2li projecting upward from one end of av horizontal bar 25 having a roughened finger piece 26 at its opposite end. The bar 25 is wider than the lug 2li andthumb piece 26 and on one side it has a locking tooth 27' for .retaining it in adjusted position. Beneath the stop lug 24- the bar 25 has a rounded part 28 and a fiat spring 30 is riveted to the bar 25 at 31, said spring pressing against the upper surface of the casting 2. Said flat part of the casting is depressed below the upper part of the iront carriage rail and at its 'forward part said rail has an undercut 32 in which the forward edge of the bar lies.y In order to complete a "l groove for said b ar to lie in, a bar 33 is secured to the upper part of the casting 2 by means of screws 34, and said bar is also undercut and the projecting flange is formed with a series of rack teeth 35 with inten dental notches into any one of which, according to adjustment, the locking tooth 9.7 can bc pressed by the springr 30. The whole construction is such that normally said locking tooth occupies one oi the notches in the bar 33 but by pressing down on the finger piece 26 and thus bending the 'spring 30, said locking tooth can be moved the teeth 35 are spaced letter` space distances apart and 'preferably graduations 36 are formed or imprinted on the upper surface of the bar 33 to facilitate adjustment of the stop, and these graduations are here shown as designated with numerals corresponding to those on the scale plate of lthe carriage. The stop for cooperation with the-stop 24: consists of a lug 37 projecting downward from the under surface of the rail'bar 5 at the left-hand end of'said bar. Y It will be perceived from Fig. 1 that the stop 24 is located beneath the carriage and that in most positions of the carriage the finger piece 26 is also covered up by the carriage but when the carriage is drawn to the operators right it will be arrested by the stop 37 striking the stop 24 and in this position the finger piece 26 is accessible at the left-hand end of the carriage. The stop can 'then be readily adjusted by pressing down on the said finger piece to Withdraw the locking tooth 27 from the rack teeth 35,

Iand then moving the stop piece and the carriage together to the letter space position at which it is desired to have the carriage arrested, and then releasing the finger piece 26, The spring 30 will then move the locking tooth 27 into engagement with the teeth4 35 and retain the adjustable stop in its set position.

It willl be noted' that the release key 21 and the finger piece 26 are near each other 'when the carriage is in its right-hand position so that the carriage and finger piece can be moved back and forth together 'conveniently. u

It will be noted that this margin stop mechanism is of extremely simple construction; that it is readily adjustable; and that it is strong and'effective Various changes can be made in the details of construction and arrangement without departing from my invention.

What I claim as new anddesire to securel 1. Ina typewriting machine and in margin stop mechanism, the combinationwith a lcarriage comprising two roller-bearing rails and a-coperating track-way; of a springpressed margin stop piece mounted in said coperating track-Way, said track-Way having means for guiding said stop piece, and said stop piece comprising abar with a stop lug/on one end thereof, and a finger piece on the other end, said finger piece when the carriage is at one en d of lts travel projecting beyond' the endof the carriage alid being under the carriage at other times; means for holding said stop piece in adjusted position comprising `a rack in thel y' track-Way and a tooth on the stop piece; /f and a coperating stop on the carriage.

2. In a typewriting machine and in mary gin stop mechanism, the combination with la carriage; of a bar, having an undercut' therein; a second barmounted on the first mentioned bar and, having a projecting toothed flange todefine a secondlnndercut facing the undercut in the first-mentioned bar; a margin stop piece mountedv in the undercut groove defined by the two said.. bars and having a locking tooth to engage the teeth of said fiange, and said margin stop piecehaving a stop lug thereon, and av sprin for pressing .said locking tooth into said flange teeth; and a coperating'stop. r

3. In a typewriting machine and in margin stop' mechanism,'the combination with a carriage; of a bar having an undercut groove therein with rack teeth along said groove; a margin stop piece comprising a\ tbar having a stop lug at one end thereof and a finger piece at the other end thereof and y a locking tooth adjacent said finger piece; la spring acting on said bar and normally holding said lookin tooth in 'engagement 'with said rack teet i .and a coperating stop.

fl. In a typewriting machine, the combination with a carriage, of a bar having an undercut groove therein; a second bar mounted on the first mentioned bar and havingan undercut to form a flange which flange is formed with rack teeth; a margin stop piece comprising a bar lying in said undercut groove; a stop lug at one end of said bar and :projecting through said groove, -a finger lpiece and a locking tooth atV the other end of said bar, and a spring under said bar t0 hold said locking tooth in engagement with said rack; and a coperating stop.

5. In a typewriting machine, the combinaltion with a carriage, of a trackway on which said carriage travels, said trackway having lan undercut groove, a flange, a toothed bar secured to said trackway so as to form a 'second undercut facing the undercut in the trackway, a margin stop piece mounted in the undercut groove and comprising a bar having a stop ug on the inner end thereof, and a finger piece on the outer end thereof with a locking tooth `to engage said rack teeth, the construction being such that when the carriage istat .one end of its travel said finger piece projects beyond the end of the carriage; and a eoperating stop.

6. In a'typewriting machine and in margin stop mechanism, the combination of a carriage; la track-wayarranged therebelow; a rack fixedly attached to said track-way; a spring-pressed margin stop piece adjust.

ably mounted in said ,track-way and comi prisng a bam provided with a looking tooth Onondaga and S to engage said rack and also comprlsing a nger pleco and a stop lug; und a coperatmg stop for the latter mounted on 'the under side of the carriage and over said Witnesses: track-way. A UGUSTQS Slgned ai: Syracuse, 1n the county of FRANK b.

Copies oz? ms mmm? may he ohmine 'for ve cents each, by addressing Washingtom Il?. Gc

day of .August dA. D. 1916.

ARTHUR. J.' Bmoos.

J. BARNES, LEWxS.

the Commisioner o' Patents,

tato of New York this 24th 

